DE422150C - Process for the production of protected, solid colloids in soluble form - Google Patents

Process for the production of protected, solid colloids in soluble form

Info

Publication number
DE422150C
DE422150C DEV17840D DEV0017840D DE422150C DE 422150 C DE422150 C DE 422150C DE V17840 D DEV17840 D DE V17840D DE V0017840 D DEV0017840 D DE V0017840D DE 422150 C DE422150 C DE 422150C
Authority
DE
Germany
Prior art keywords
protected
production
soluble form
colloids
solid colloids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEV17840D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
H VOGEL DR
Original Assignee
H VOGEL DR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by H VOGEL DR filed Critical H VOGEL DR
Priority to DEV17840D priority Critical patent/DE422150C/en
Application granted granted Critical
Publication of DE422150C publication Critical patent/DE422150C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0004—Preparation of sols
    • B01J13/0008—Sols of inorganic materials in water
    • B01J13/0013—Sols of inorganic materials in water from a precipitate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Colloid Chemistry (AREA)

Description

Verfahren zur Herstellung geschützter, fester Kolloide in löslicher Form.Process for the production of protected, solid colloids in soluble Shape.

Bisher stellte man feste, lösliche Kolloide entweder durch Fällen aus den Lösungen mittels Elektrolyten oder durch Eindampfen der Lösung dar. Der ersten Arbeitsweise haftet der Fehler an, daß stets mehr oder weniger große Mengen des Elektrolyten von dem Kolloid adsorbiert werden und selbst durch Dialyse niemals wieder vollständig zu entfernen sind, so daß man aus solchen gefällten Kolloiden hochkonzentrierte Lösungen nicht mehr herstellen kann. Außerdem findet bei dem Verfahren fast ausnahmslos eine Teilchenaggregation statt. Der zweiten Arbeitsweise haftet der Nachteil eines erheblichen Wärmeverbrauches für Verdampfungszwecke an, und außerdem tritt auch hier fast immer eine Vergrößerung der Teilchen infolge der erhöhten Temperatur beim Verdampfen ein. So far, solid, soluble colloids have been produced either by felling from the solutions by means of electrolytes or by evaporation of the solution The first problem is that the quantities are always more or less large of the electrolyte will be adsorbed by the colloid and never even by dialysis must be completely removed again, so that one can get from such precipitated colloids can no longer produce highly concentrated solutions. Also takes place in the process particle aggregation takes place almost without exception. The second way of working is liable the disadvantage of considerable heat consumption for evaporation purposes, and moreover Here, too, there is almost always an increase in the size of the particles as a result of the increased temperature when evaporating.

Ganz abgesehen davon, gehen bei dieser Árbeitsweise häufig die bei der Herstellungsder Sole entstandenen Elektrolyte mit in den eingedampften Rückstand über. Außerdem ist eine derartige Arbeitsweise äußerst zeitraubend.Quite apart from that, in this way of working, the the production of the brine produced electrolytes with in the evaporated residue above. In addition, such an operation is extremely time consuming.

Das Verfahren gemäß der Erfindung löst die Aufgabe, die genannten Nachteile zu vermeiden. Es hat sich nämlich gezeigt. daß es auf eine schnellere Weise ohne irgendwelche Temperaturerhöhung möglich ist, Kolloide aus ihren Lösungen in unverändert fester Form zu gewinnen. Zu diesem Zweck läßt man auf die Lösung andere Schutzkolloide einwirken, die mit dem verwendeten Schutzkolloid unlösliche, aber wieder peptisierbare Niederschläge bilden. The method according to the invention solves the problem mentioned Avoid disadvantages. Because it has been shown. that it is faster Way without any increase in temperature is possible to remove colloids from their solutions to be obtained in unchanged solid form. For this purpose, the solution is left on other protective colloids act, which are insoluble with the protective colloid used, but again form peptisable precipitates.

Als Beispiele seien angegeben: I. Man versetzt ein mit Glutin geschütztes kolloides Silber mit einem leimfällenden Kolloid, z. B. Gerbsäure. Der entstehende Niederschlag ballt sich beim Schütteln zu Klumpen zusammen, die sich durch Kneten mit Wasser von den etwa in der Sole vorhanden gewesenen Elektrolyten fast restlos befreien lassen. The following are given as examples: I. A glutin-protected one is added colloidal silver with a glue-precipitating colloid, e.g. B. tannic acid. The emerging Precipitation agglomerates into lumps when shaken, which are kneaded together with water almost completely of the electrolytes that may have been present in the brine let free.

Das so erhaltene Erzeugnis läßt sich trocknen und bei Zusatz minimaler Mengen von Basen oder basisch reagierender Stoffe wieder in Lösung bringen.The product obtained in this way can be dried and, if added, less Bring quantities of bases or substances with a basic reaction back into solution.

2. Eine mit Tannin geschützte kolloide Quecksilbersulfidlösung wird mittels einer Gelatinelösung gefällt und im übrigen nach Beispiel 1 verfahren. 2. A tannin-protected colloidal solution of mercury sulphide becomes precipitated by means of a gelatin solution and otherwise proceed according to Example 1.

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Herstellung geschützter, fester Kolloide in löslicher Form, dadurch gekennzeichnet, daß man die mit einem Schutzkolloid hergestellten kolloiden wäßrigen Lösungen mit einem zweiten Schutzkolloid versetzt, welches mit dem ersteren einen unlöslichen, aber wieder peptisierbaren Niederschlag bi:det, und dann diesen Niederschlag in üblicher Weise reinigt und trocknet. PATENT CLAIM: Process for the production of protected, solid colloids in soluble form, characterized in that they are produced with a protective colloid colloidal aqueous solutions mixed with a second protective colloid, which with the former forms an insoluble, but again peptisable precipitate, and then clean and dry this precipitate in the usual way.
DEV17840D 1922-10-12 1922-10-12 Process for the production of protected, solid colloids in soluble form Expired DE422150C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV17840D DE422150C (en) 1922-10-12 1922-10-12 Process for the production of protected, solid colloids in soluble form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV17840D DE422150C (en) 1922-10-12 1922-10-12 Process for the production of protected, solid colloids in soluble form

Publications (1)

Publication Number Publication Date
DE422150C true DE422150C (en) 1925-11-24

Family

ID=7576642

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV17840D Expired DE422150C (en) 1922-10-12 1922-10-12 Process for the production of protected, solid colloids in soluble form

Country Status (1)

Country Link
DE (1) DE422150C (en)

Similar Documents

Publication Publication Date Title
DE422150C (en) Process for the production of protected, solid colloids in soluble form
DE337768C (en) Process for the production of the purest cellulose with a cotton or wool-like texture from vegetables using sulphite liquors
DE516677C (en) Process for the preparation of condensation products from phenols and aldehydes
DE419658C (en) Process for the production of a water-soluble evaporation product from latex
DE531846C (en) Process for the production of physiologically active copper-arsenic compounds
DE715032C (en) Process for the preparation of dicalcium phosphate fertilizers
DE411323C (en) Manufacture of colloidal arsenic sulfide
DE710224C (en) Process for the production of dry, colloidally soluble tungstic acid and molybdic acid
DE1936247A1 (en) Process for the production of tablet-shaped water-soluble substances
DE517251C (en) Process for the production of hydrophobic resins by condensation of urea or urea derivatives with aldehydes, in particular with formaldehyde
AT262953B (en) Process for the production of L-arginine-L-asparaginate
DE388706C (en) Process for the production of liquid sulphurous acid
DE396215C (en) Process for the production of mixed fertilizers
AT120431B (en) Process for the production of double compounds of urea with sodium iodine.
DE385557C (en) Process for the production of potassium nitrate from sodium nitrate and potassium sulfate
US2057985A (en) Making of lead arsenates
AT106209B (en) Process for separating enzymes from their solutions.
DE652249C (en) Process for the production of gold sodium thiosulfate
DE98177C (en) Process for the preparation of a water-soluble preparation from casein and glycerol phosphoric acid salts
DE433526C (en) Production of a bismuth silicate
DE408653C (en) Process for adjusting air or other gases to a certain moisture content
DE561119C (en) Process for the production of foils, films, tapes by processing cellulose solutions
DE1044047B (en) Process for the production of lead azide
DE765191C (en) Process for the production of solid, water-soluble aluminum acetate
DE481926C (en) Process for the production of solid bodies suitable as protective colloids from cellular pitch liquor